Folding-machine.



A. IVI. ALEXANDER.

FOLDING MACHINE.l APPLICATION FILED OCT. 26 I9I4.

@y Patented Apr. 30, 1918.

3 SHEETS-SHEET I.

I/I//TA/[SSS A. Nl. ALEXANDER.

FOLDING MACHINE. AP'PLlcArmN man ocnz. 1914.

l 136., Patented Apr. 30, 1918.'

3 SHEETS-SHEET 2.

A. Wl. ALEXANDER.

mums MACHINE.

APPLICATION FILED OCT-26, 19N.

Patented Apr. 30, 1918.

3 SHEETS-SHEET 3.

` rite arte ati-Erf rien ALEXANDER ivr. ALEXANDER, or BEVERLY, iviiissncnusnrrs, Assienon, EY iuEsnE` ASSIGNMENTS, l".'LO UNITED SHOE MACHINERY JERSEY, A `CORJPOBJMEION F NEW J' incidan.;

` i EoLinndivialoiiinn. y f

Application flied octbr'ae, 191e.` serial ivo. essere.'

To all whom t'tmrzg/ concern:

Be it known that l, ALEXANDER M; ALEX-` i ANDER, a citizen of the United States,re

Ill() siding` at Beverly, in the county ofEsseXi and State of Massachusetts,"have invented certain Improvements in FoldingeMachines, of which 4the following` description, in con` nection with the accompanying drawings, is a specification,.like reference characters on the drawings indicating like parts inthe several figures.

This invention relates to folding machines and is herein illustrated in connection withl a machine for progressively folding` the margin of a pieceof upper leather.

One feature of the invention relates to a plurality of folding members which act upon the margin of the stock successively preparatory to the pressing of the fold.

Aiiotherfeature of the inventiony relates to improvedlsnipping mechanism. n n These and other features of `the invention including certain details of construction and combinations of parts will'be described `in connection with anillustrative machine and pointed out in the appended claims.

y Referring now to the accompanying draw- Figure l is a side elevation of` a machine in whichthepresent invention isembodied;

FigQfQ is affront elevation of themachine;

'a' drive shaft 3 having fast to'tsen'd a pul-` ley 5V and' from this shaft all the moving parts are driven. i.

Considering iirst the "feed mechanism, the,`

end of the shaft 3 carries an eccentric pin 7 encircled by "a strap `9` which `is'integral with amember" 11, said member being slidablein a suitable guidewayin the under side of the feed member 13 wherebyrotation ofthe shaft 3 raises and lowers said feed member. lThe feed memberhas in itsend a slot '17 to receive a fixed stud 19, spring 2l in said member serving to urge it continually toward the right as viewed inFig'. 2L

Positive movement toward the left is p rof duced bythe oscillation of a lever 23 which abutment?? on aiiarm 29 which is pivoted CORPORATION, 0l? PATERSON, N EW l 1 Specification `ofetters Patent.` lpgttjtggidl Apirlpgw,191%;`

i is pivoted at 25 to the frame and at its up?` l per eiidrests against the eccentric strap 9.1

i This lever contacts near its center with an at 3l`to`the feed member 13. The arni29` y carries at `its end a roll which travels in a slot in :the adjustinginember35 so that turning,` of said memberraises or lowers the abutment 27 andv thereby varies the extent of each intermittent feed.` This feed mech anisin which is of the type commonly known as a fourlmotion feed will not be further described lsince its details form no part of the present invention.

of construction` Tn order to hold the 'leather or other ma# l terialdown so that the feed member`13 will act uponit, an idle feed' wheel 37 of frusto" conical shape is rotatably. mounted in a bracket 39 carried by a rod lll. This rod is connected by a screw 43 with a plunger 45 which is continually pressed downwardly by a spring` 47, a cam 5l beingprovided in contact withl the frame vof the machine so that turning of `said cam will lraise the idle feed wheel 37 topermit'the forward edge of a piece of stock to be presented to the fold ing mechanism. The plunger 45 fits in a suitable socketin the framefof the machine,

the stem of the screw 4-3 extending through a slot in the Wall ofv Said socket.V

In the operation of the machine a portion of the margin" isA first turned up approximargin is then slitted if desired `and" acted Pon by Supplementary foiaeranerwhi'cil the fold is pressed. A creaser `53 is herein folder` which cooperates witlithis creaser is `herein shown as a pin 57 carried by an: arm 59 having a hooked end. Theend ofl this'arm remote from the hook receives the movable. The hook rests upon a cam 6l carstud 19 about which the arm is ai'igularly-` l ried at the end of the eccentric pin 7 on the drive shaft 13 and is held against said cam by a spring 62; When, therefore, the drive shaft 3 is rotated the pin 57 rises intermit-` ioo tently and bends the margin of the stocki-` about the creaser 53.

Thecutting or slitting mechanism in the illustrated machine Vcomprises two shear mately 900 about a creaser. The turned up 63 and the supplementary folder 65 varel shown as integral with each other and with an larm 67 which is pivoted--on a fixed" stud 69, said arm being in turnpivoted toa link 71. It should be noted that the side of they vibratory shear member 63 and the .extension 167 ofthe arm 67 form afguideway to receive the stationary shear member 93. The

link .71 is suspended from a pin 7 3 carried by the frameof themachine, there being a slot in said link to receive said pin. A second curved slot 7 7 in thelink 71 receives an actuating pin 79 which is held between spring ,jaws 81 on anpactuating arm S5, said javvsbeing ,adjustable by means of a pinch screw SSso as to allow a slight play between them'and the pin-if desired. The actuating arm,.85 (see Figli) is pivoted at 87 to the frame and is vibrated by means of a rod 89 the Vupper end of which receives a pin 91 secured in ysaid arm and the lower end .of which embraces anneccentricv on the shaft 3. It will vnow beclear that vibration of the arm causes oscillation of the link 71 and consequently oscillation of the supple mentary folder 65 and theshear blade 63. I TheY stationary shear member 93 is pivoted to the frame at 95 and is held in place frictionallyv by the heady ofthe pivot screw 95. Asclearly, shown in Fig. 1, this stationary shear member has a handleby which it may be moved into. or `out of operative position as maybe desired.. In said figurethef full lineposition is the operative .position'and the brokenlineposition is the inoperative position.

Thepresser. .which finally presses the fold after the action of the supplementary folder 65 is shown at 197 and is carried at the lower endof a rod 99 which is vertically slidable in bearings in the .frame of the machine, Tliepin79 is threadedinto this rod so that when the actuating arm 85 is vibrated said rod is' reciprocated;Y

A table^101 supports the stock as it is being fed and folded, and an edge gage 103 is adjustably mounted on said table.

The operation vof the machine is as fol lows: With the parts in the position shown in the figures theicam 51 is turned to raise the idlefeed -wheel 37 to permit the forward end of a piece ofstock to be placed beneath it. lThe cam 51 is then turned in the reverse direction .whereupon the springl returns the" .Wheel T37 ,to the position shown. pin 57 rises thereby turning a portion of the marginupabout the creaser 53. The stock is then fedalong one step and. acted upon by TheV ' the shear members if desired and by the supplementary folder 65. The next step of the feed brings this portion of the margin beneath the presser 97 which thereupon descends and presses the fold. Meantime succeeding portions of the margin are being acted upon by the folders and the slitting mechanism if said mechanism is in operative position. This action of the various me1nbers continues until the whole margin of the piece of stock is folded.

Although the invention has been set forth in connection with an illustrative machine'it should be understood that the invention is not limited in the scope of its applicatirm to the particular machine shown and described.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is 1. A rmachine of the class described having, in combination, a support for a piece of stock, means for feeding said piece-intermittently over said support, a plurality ol folders movable in different dirci-,tions for progressively bending a portion of the margin Aover the body of the stock, a presser for forcing said bent over margin against the body of the stock, and means for operating said folders and presser.

2. A machine of the class described having, in combination, a support for a piece of stock, means forfeeding said piece intermittently over said support, a creaser for de termining the line of fold, a folder for bending the margin of the stock `up about the creaser,l a supplementary folder arranged to act at an angle to the direction of action of thefirst named folder, means for operating said folders, and means for pressing the fold.

3. A machine of the class described having, in combination, a support for a piece of stock, means for feeding said piece intermittently over said support, a folder arranged to be moved upwardly' from a position below the stock to raise a portion of the margin of said stock into an approximately upright position, a supplementary folder arranged to bend the upturnedportion farther over, a presser for forcingsaid bent portion of the margin down upon the body of the stock, and means for operating said folders and presser.

A machine of the class described hav` ing, in combination, a support for a piece of stock, means for feeding said piece intermittently over said support, means for turning up the margin of said piece, a stationary shear blade, a combined vibratory folder operating said combined folder `and blade and said presser.

5. A machine of the class described having, in combination, a support for a piece of v and shear blade, a presser, and means for i malaise stock, means for feeding said piece over said support, a folder for progressively bending the margin of the stock upwardly, a supplementary folder arranged to Vact at an angle to the direction of action of said first named ing, in combination, a support for a piece of stock, means for feeding said r piece over said support, a folder for progressively bending Vthe margin of t-'he stock upwardly,

a supplementary folder arranged to act at an angle to the direction of action of said first named folder, a movable shear blade connected with said supplementary folder,

a stationary shear blade arranged to coperate withsaid first named blade to slit the margin of the stock, and means ing said folders and presser. y

,7.` A machine of the class described having, in combination, a support for a piece of stock, means for feeding said piece intermittently over said support, a` stationary shear blade, a combined folder and vibratory shear blade having a guideway through which said stationary blade passes, a presser located at one side of said combined memfor operat- Guplea el? tibia patent may be obtained for ave cents each, by addressing the l i `Waaltdnmcm M.

margin farther over prior to the ber, and means for operating said presser and combined member.

`8. Amachine of the class described, having, in combination, a support for a piece of stock, means for feeding said piece intermittently over said support, a movable folder arranged to turn the margin of the stock upwardly, a movable supplementary folder arranged to bend theupturned margin farther over, a presser for forcing said bent portionfof the margin down upon the body of the stock, and means for operating said folders and presser. v

9. A machine of the class described, having, in combination, means for feeding a piece of material intermittently into position to have its margin operated upon, a movable `folder for bending said margin upwardly,

a fold presser,

r a member located between said folder and fold presser for bending the pressing operation, and means for operating said folder, member ,and presser. v

In testimony whereof I have signed my name tothis specification in the presence of two subscribing witnesses.

Witnesses:v

CHESTER E. ROGERS, THoMAs LUND.

"Gommiaaioner er Patente, 

